- Email: [email protected]
Products in brief
Name
Description
Manufacturer/distributor
Gateway for Ingres relational database management to DEC’s RMS filing system. Provides transparent access through Ingres’ Open SQL to data held in RMS files on VAX systems. Allows lngres users to send industry standard SQL requests transparently to DEC’s RMS with a minimum of software overhead. The gateway analyses the equest and transforms the Open SQL to RMS function cals. Data is then transferred, using Ingres’ Global Communications Architecture, back to the requesting user interface.
lngres Ltd, lngres Technology Centre, Wharfdale Road, Winnersh, Wokingham, Berks RGll STP, UK. Tel: 44 (0) 734 496400
LANCON
Multi-user gateway which alows any Nokia Data PC or compatible LANbased PC to emulate an E240 workstation, providing connection to Nokia’s System 2500 transaction processing mini computer. Can be configured to support either five or 16 users simultaneously over each gateway, and since multiple gateways are supported, more than one System 2500 can be connected to the network. Parameters can be set in the gateway to allocate fixed process numbers to certain users, while for the other users access can be provided by a ‘pool’ of processes, shared by an unlimited number of users over the network.
Nokia Data Ltd, Nokia House, Riverbank Way, Great West Road, Brentford, MidlesexTW8 9DN, UK. Tel: 44 (0) 81 569 7700
Netcomm PAD3000
High performance 10 Mbit/s PAD capable of interfacing up to 16 users to Ethernet of X.25 networks, or both. Offers two 10 Mbit/s X.25 links, an Ethernet link plus 16 38.4 kbit/s asynchronous pots. Each asynchronous port can run up to eight multiple calls at any one time. Netcomm PAD3000 is capable of supporting both X25 used by BT’s PSS and X25 (84) protocols, PAD3000 offers gateway facilities between the Ethernet pot and the X25 port.
Netcomm Ltd, Olympic Business Centre, Paycocke Road, Basildon, Essex SS14 3EX, UK. Tel: 44 (0) 268 534228
Transparent interface unit which facilitates data transmission over the Cellnet mobile telephone network. Targetted at the finanial services sectors. When configured to a lap-top, portable printer or mobile telephone it provides the user with a mobile workstation.
Securicor Communications, Sutton Park House, 15 Carshalton Road, Sutton, Surrey SMl 4LE, UK. Tel: 44 (0) 81 770 7000
Can be used for datacomms by any industry standard portable PC. Range comprises a triple speed pocket Biscom, a quad-speed pocket Quadcom and a triple speed sendfax model, the pocket ComFax. Biscom operates at V22 BIS, V21 and V21. ComFax supports the same, and adds 4800 bit/s error detection and MNP 5 data compression. Quadcom features the same as the first two, plus V23 for compatibility with Viewdata services.
Dataflex Design Ltd, 1 O-l 2 Lombard Road, South Wimbledon, London SW1 9 3TZ, UK. Tel: 44 (0) 81 543 6417
IEEE 802.3-compliant Allied Telesis Miniature Transceivers to change DTE connections from AUI to thin Ethernet or twisted pair. Both models plug into AUI female connections. Surface mount technology increases reliability and decreases physical size, thus allowing the MXlO to connect directly to the AUI port without stressing AUI connections.
IBS Ltd, 33-34 Kingfisher Court, Hambridge Road, Newbury, Berks RG14 5S], UK. Tel: 44 (0) 635 550500
Datamizer III PB-8 & XB-2
Enhanced products now operate over a 64 kbit/s digital line, enabling the user to migrate more easily to high speed services. PB-8 provides throughput of 307.2 kbit/s and XB-2 of 256 kbit/s over existing lower speed lines. Therefore, excess lines or circuits can be elimnated, or high speed equipment can be added instantly without installing new circuits. Consequent throughput quadrupling improves response times, maintains sessions, and thus increases productivity.
Symplex Communications Corporation, Gevers Deynootweg 97Of, 2586 BW Den Haag, The Netherlands. Tel: 31 (0) 7035 00341
MSAU
Multi-stage access unit fully compatible with IBM 8228 MSAU specification. Can attach up to eight devices to an IBM token ring network. Can also be linked together to form larger networks. Also offers conformity to IEEE 802.5 in an IBM token ring environment.
Wadsworth Electronics Ltd, Central Avenue, East Molesey, Surrey KT8 OQB, UK.
Gateways Ingres/Gateway to RMS
Modems SC1 D modem
2400 Pocket Modem Range
Networks ATI lOBASE (MXl 0) & ATI 1 OBASE-T (Model 21oT)
632
computer communications
Name
Description
Manufacturer~distributor
299AT Active Hub
Provides IBM system 3X/AS400 users with a versatile alternative to twinaxial cable networks. Large star-wired networks operating at 1 Mbit/s with peripheral located at up to 4,500 feet from the host controller can be constructed with low cost unshielded twisted pair cable. Acting as a multi-channel repeater, the 299AT regenerates data between hosts/ controllers and peripherals. Also offers fault-tolerance, noise immunity and status display. Incorporates self-test diagnosis when in conjunction with the Remote Diagnostic Loopback (RDL), baluns and the associated tester.
Datarange Communications Ltd, Cressex Business Complex, Lancaster Road, High Wycombe, Bucks HP12 3PY, UK. Tel: 44 (0) 494 441 256
3023, 3024 & 3025 CentreCom
Series of dual port Ethernet repeaters combining a low cost repeater solution with the flexibility of mixing media types. Ethernet IEEE 802.3 compliant, the repeaters can be used to extend the length of Ethernet segments. They also automatically partition segments when 32 consecutive collisions are detected, and automatically reconnect segments once one good data packet is detected.
Trend Datalink Ltd, Knaves Beech Estate, Loudwater, High Wycombe, Bucks HP10 9QX, UKo Tel: 44 (0) 6285 28112
6150 RAManager
Token ring network adapter focusing on providing RAMcram relief under DOS. Accommodates four and 16 Mbit/s token ring connectivity, 3270 emulation and user applications, all operating simultaneously within the memory capabilities of DOS workstations. Allows PC-workstations using popular 3270 emulation programs to access data on mainframe hosts or network servers. Provides token ring to Ethernet direct host access without using gateways. Compatible with popular network operating systems.
Hughes LAN Systems, 1225 Charleston Road, Mountain View, CA 94043, USA. Tel: (1)415 966 7300
ISDN and wide area protocol analysers. Product set enhances Trend's test equipment range by providing ISDN test products in the £3,000 - 10,000 price bracket. Suited to the field service market - lightweight, portable with a range of capabilities. Can be used to test interfaces such as V35, V24, RS449, V36 and X21. Also supports a number of protocols including X25, SNA, DDCMP, and carries out testing of both BERT/BLERT and ISDN. Provided with emulation software that allows users to set up voice calls through a local ISDN PBX. Emulates an ISDN telephone, generating the dial tone and DTMF signals to establish a voice call.
Trend Datalink Ltd, Knaves Beech Estate, Loudwater, High Wycombe, Bucks HP10 9QX, UK. Tel: 44 (0) 6285 28112
Capable of processing 1,000 packets of data per second, the NP1000 should be of interest to companies needing high speed routing of heavy traffic within a packet switched network. Reduces intra-switch transit times to 1 - 2 milliseconds, thus improving network efficiency. Supports full duplex operation at asynchronous rates of up to 38.4 kbit/s, and synchronous rates of up to 128 kbit,/s. Up to 28 ports are available to connect a wide variety of network devices, including front-end processors, workstations, etc.
Timeplex Ltd, Timeplex House, Langley Business Park, Langley, Slough, Berks SL3 8DT, UK. Tel: 44 (0) 532 459555
Testing TESTMAN 705
X.25 NP1000
From left to right: Datamizer III from 5ymplex Communications; CentreCom range of Ethernet repeaters from Trend Datalink Ltd; and TESTMAN 705 portable protocol analyser, also from Trend Datalink Ltd.
vol 13 no 10 december 1990
633
Description
Manufacturer/distributor
Gateway for Ingres relational database management to DEC’s RMS filing system. Provides transparent access through Ingres’ Open SQL to data held in RMS files on VAX systems. Allows lngres users to send industry standard SQL requests transparently to DEC’s RMS with a minimum of software overhead. The gateway analyses the equest and transforms the Open SQL to RMS function cals. Data is then transferred, using Ingres’ Global Communications Architecture, back to the requesting user interface.
lngres Ltd, lngres Technology Centre, Wharfdale Road, Winnersh, Wokingham, Berks RGll STP, UK. Tel: 44 (0) 734 496400
LANCON
Multi-user gateway which alows any Nokia Data PC or compatible LANbased PC to emulate an E240 workstation, providing connection to Nokia’s System 2500 transaction processing mini computer. Can be configured to support either five or 16 users simultaneously over each gateway, and since multiple gateways are supported, more than one System 2500 can be connected to the network. Parameters can be set in the gateway to allocate fixed process numbers to certain users, while for the other users access can be provided by a ‘pool’ of processes, shared by an unlimited number of users over the network.
Nokia Data Ltd, Nokia House, Riverbank Way, Great West Road, Brentford, MidlesexTW8 9DN, UK. Tel: 44 (0) 81 569 7700
Netcomm PAD3000
High performance 10 Mbit/s PAD capable of interfacing up to 16 users to Ethernet of X.25 networks, or both. Offers two 10 Mbit/s X.25 links, an Ethernet link plus 16 38.4 kbit/s asynchronous pots. Each asynchronous port can run up to eight multiple calls at any one time. Netcomm PAD3000 is capable of supporting both X25 used by BT’s PSS and X25 (84) protocols, PAD3000 offers gateway facilities between the Ethernet pot and the X25 port.
Netcomm Ltd, Olympic Business Centre, Paycocke Road, Basildon, Essex SS14 3EX, UK. Tel: 44 (0) 268 534228
Transparent interface unit which facilitates data transmission over the Cellnet mobile telephone network. Targetted at the finanial services sectors. When configured to a lap-top, portable printer or mobile telephone it provides the user with a mobile workstation.
Securicor Communications, Sutton Park House, 15 Carshalton Road, Sutton, Surrey SMl 4LE, UK. Tel: 44 (0) 81 770 7000
Can be used for datacomms by any industry standard portable PC. Range comprises a triple speed pocket Biscom, a quad-speed pocket Quadcom and a triple speed sendfax model, the pocket ComFax. Biscom operates at V22 BIS, V21 and V21. ComFax supports the same, and adds 4800 bit/s error detection and MNP 5 data compression. Quadcom features the same as the first two, plus V23 for compatibility with Viewdata services.
Dataflex Design Ltd, 1 O-l 2 Lombard Road, South Wimbledon, London SW1 9 3TZ, UK. Tel: 44 (0) 81 543 6417
IEEE 802.3-compliant Allied Telesis Miniature Transceivers to change DTE connections from AUI to thin Ethernet or twisted pair. Both models plug into AUI female connections. Surface mount technology increases reliability and decreases physical size, thus allowing the MXlO to connect directly to the AUI port without stressing AUI connections.
IBS Ltd, 33-34 Kingfisher Court, Hambridge Road, Newbury, Berks RG14 5S], UK. Tel: 44 (0) 635 550500
Datamizer III PB-8 & XB-2
Enhanced products now operate over a 64 kbit/s digital line, enabling the user to migrate more easily to high speed services. PB-8 provides throughput of 307.2 kbit/s and XB-2 of 256 kbit/s over existing lower speed lines. Therefore, excess lines or circuits can be elimnated, or high speed equipment can be added instantly without installing new circuits. Consequent throughput quadrupling improves response times, maintains sessions, and thus increases productivity.
Symplex Communications Corporation, Gevers Deynootweg 97Of, 2586 BW Den Haag, The Netherlands. Tel: 31 (0) 7035 00341
MSAU
Multi-stage access unit fully compatible with IBM 8228 MSAU specification. Can attach up to eight devices to an IBM token ring network. Can also be linked together to form larger networks. Also offers conformity to IEEE 802.5 in an IBM token ring environment.
Wadsworth Electronics Ltd, Central Avenue, East Molesey, Surrey KT8 OQB, UK.
Gateways Ingres/Gateway to RMS
Modems SC1 D modem
2400 Pocket Modem Range
Networks ATI lOBASE (MXl 0) & ATI 1 OBASE-T (Model 21oT)
632
computer communications
Name
Description
Manufacturer~distributor
299AT Active Hub
Provides IBM system 3X/AS400 users with a versatile alternative to twinaxial cable networks. Large star-wired networks operating at 1 Mbit/s with peripheral located at up to 4,500 feet from the host controller can be constructed with low cost unshielded twisted pair cable. Acting as a multi-channel repeater, the 299AT regenerates data between hosts/ controllers and peripherals. Also offers fault-tolerance, noise immunity and status display. Incorporates self-test diagnosis when in conjunction with the Remote Diagnostic Loopback (RDL), baluns and the associated tester.
Datarange Communications Ltd, Cressex Business Complex, Lancaster Road, High Wycombe, Bucks HP12 3PY, UK. Tel: 44 (0) 494 441 256
3023, 3024 & 3025 CentreCom
Series of dual port Ethernet repeaters combining a low cost repeater solution with the flexibility of mixing media types. Ethernet IEEE 802.3 compliant, the repeaters can be used to extend the length of Ethernet segments. They also automatically partition segments when 32 consecutive collisions are detected, and automatically reconnect segments once one good data packet is detected.
Trend Datalink Ltd, Knaves Beech Estate, Loudwater, High Wycombe, Bucks HP10 9QX, UKo Tel: 44 (0) 6285 28112
6150 RAManager
Token ring network adapter focusing on providing RAMcram relief under DOS. Accommodates four and 16 Mbit/s token ring connectivity, 3270 emulation and user applications, all operating simultaneously within the memory capabilities of DOS workstations. Allows PC-workstations using popular 3270 emulation programs to access data on mainframe hosts or network servers. Provides token ring to Ethernet direct host access without using gateways. Compatible with popular network operating systems.
Hughes LAN Systems, 1225 Charleston Road, Mountain View, CA 94043, USA. Tel: (1)415 966 7300
ISDN and wide area protocol analysers. Product set enhances Trend's test equipment range by providing ISDN test products in the £3,000 - 10,000 price bracket. Suited to the field service market - lightweight, portable with a range of capabilities. Can be used to test interfaces such as V35, V24, RS449, V36 and X21. Also supports a number of protocols including X25, SNA, DDCMP, and carries out testing of both BERT/BLERT and ISDN. Provided with emulation software that allows users to set up voice calls through a local ISDN PBX. Emulates an ISDN telephone, generating the dial tone and DTMF signals to establish a voice call.
Trend Datalink Ltd, Knaves Beech Estate, Loudwater, High Wycombe, Bucks HP10 9QX, UK. Tel: 44 (0) 6285 28112
Capable of processing 1,000 packets of data per second, the NP1000 should be of interest to companies needing high speed routing of heavy traffic within a packet switched network. Reduces intra-switch transit times to 1 - 2 milliseconds, thus improving network efficiency. Supports full duplex operation at asynchronous rates of up to 38.4 kbit/s, and synchronous rates of up to 128 kbit,/s. Up to 28 ports are available to connect a wide variety of network devices, including front-end processors, workstations, etc.
Timeplex Ltd, Timeplex House, Langley Business Park, Langley, Slough, Berks SL3 8DT, UK. Tel: 44 (0) 532 459555
Testing TESTMAN 705
X.25 NP1000
From left to right: Datamizer III from 5ymplex Communications; CentreCom range of Ethernet repeaters from Trend Datalink Ltd; and TESTMAN 705 portable protocol analyser, also from Trend Datalink Ltd.
vol 13 no 10 december 1990
633